Inverted nipples are one of the many variations of the human body that make each of us unique, sort of like having an "innie" or "outtie" bellybutton. Some people feel awkward about having "innies" because their nipples look different or appear to be hiding or are shy. Fortunately, no medical problems are associated with being born with inverted nipples.

It's possible to change "innie" nipples to "outties" through plastic surgery. These procedures are expensive, though (ranging from about two to five thousand dollars), and there's a chance that nipples will revert to their old orientation after the operation.

Exercise and sports will not alter the appearance of your nipples. Remember, practically everyone (including supermodels and professional athletes) has some physical "flaw" that s/he wishes s/he could change. Instead of focusing on your least favorite feature, perhaps you can be proud of your brilliant smile, beautiful eyes, or another of your many awesome attributes.

http://www.goaskalice.columbia.edu/1924.html

Don't worry about the blood. It will heal. You will want to keep your nipples clean, and perhaps a dab of antibiotic ointment.

Kerry